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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/speech/tts_platform.h" | 5 #include "chrome/browser/speech/tts_platform.h" |
6 | 6 |
7 // Chrome OS doesn't have native TTS, instead it includes a built-in | 7 // Chrome OS doesn't have native TTS, instead it includes a built-in |
8 // component extension that provides speech synthesis. This class includes | 8 // component extension that provides speech synthesis. This class includes |
9 // an implementation of LoadBuiltInTtsExtension and dummy implementations of | 9 // an implementation of LoadBuiltInTtsExtension and dummy implementations of |
10 // everything else. | 10 // everything else. |
11 | 11 |
12 class TtsPlatformImplChromeOs : public TtsPlatformImpl { | 12 class TtsPlatformImplChromeOs : public TtsPlatformImpl { |
13 public: | 13 public: |
14 // TtsPlatformImpl overrides: | 14 // TtsPlatformImpl overrides: |
15 virtual bool PlatformImplAvailable() OVERRIDE { | 15 virtual bool PlatformImplAvailable() override { |
16 return false; | 16 return false; |
17 } | 17 } |
18 | 18 |
19 virtual bool LoadBuiltInTtsExtension( | 19 virtual bool LoadBuiltInTtsExtension( |
20 content::BrowserContext* browser_context) OVERRIDE { | 20 content::BrowserContext* browser_context) override { |
21 TtsEngineDelegate* tts_engine_delegate = | 21 TtsEngineDelegate* tts_engine_delegate = |
22 TtsController::GetInstance()->GetTtsEngineDelegate(); | 22 TtsController::GetInstance()->GetTtsEngineDelegate(); |
23 if (tts_engine_delegate) | 23 if (tts_engine_delegate) |
24 return tts_engine_delegate->LoadBuiltInTtsExtension(browser_context); | 24 return tts_engine_delegate->LoadBuiltInTtsExtension(browser_context); |
25 return false; | 25 return false; |
26 } | 26 } |
27 | 27 |
28 virtual bool Speak( | 28 virtual bool Speak( |
29 int utterance_id, | 29 int utterance_id, |
30 const std::string& utterance, | 30 const std::string& utterance, |
31 const std::string& lang, | 31 const std::string& lang, |
32 const VoiceData& voice, | 32 const VoiceData& voice, |
33 const UtteranceContinuousParameters& params) OVERRIDE { | 33 const UtteranceContinuousParameters& params) override { |
34 return false; | 34 return false; |
35 } | 35 } |
36 | 36 |
37 virtual bool StopSpeaking() OVERRIDE { | 37 virtual bool StopSpeaking() override { |
38 return false; | 38 return false; |
39 } | 39 } |
40 | 40 |
41 virtual void Pause() OVERRIDE {} | 41 virtual void Pause() override {} |
42 | 42 |
43 virtual void Resume() OVERRIDE {} | 43 virtual void Resume() override {} |
44 | 44 |
45 virtual bool IsSpeaking() OVERRIDE { | 45 virtual bool IsSpeaking() override { |
46 return false; | 46 return false; |
47 } | 47 } |
48 | 48 |
49 virtual void GetVoices(std::vector<VoiceData>* out_voices) OVERRIDE { | 49 virtual void GetVoices(std::vector<VoiceData>* out_voices) override { |
50 } | 50 } |
51 | 51 |
52 // Get the single instance of this class. | 52 // Get the single instance of this class. |
53 static TtsPlatformImplChromeOs* GetInstance(); | 53 static TtsPlatformImplChromeOs* GetInstance(); |
54 | 54 |
55 private: | 55 private: |
56 TtsPlatformImplChromeOs() {} | 56 TtsPlatformImplChromeOs() {} |
57 virtual ~TtsPlatformImplChromeOs() {} | 57 virtual ~TtsPlatformImplChromeOs() {} |
58 | 58 |
59 friend struct DefaultSingletonTraits<TtsPlatformImplChromeOs>; | 59 friend struct DefaultSingletonTraits<TtsPlatformImplChromeOs>; |
60 | 60 |
61 DISALLOW_COPY_AND_ASSIGN(TtsPlatformImplChromeOs); | 61 DISALLOW_COPY_AND_ASSIGN(TtsPlatformImplChromeOs); |
62 }; | 62 }; |
63 | 63 |
64 // static | 64 // static |
65 TtsPlatformImpl* TtsPlatformImpl::GetInstance() { | 65 TtsPlatformImpl* TtsPlatformImpl::GetInstance() { |
66 return TtsPlatformImplChromeOs::GetInstance(); | 66 return TtsPlatformImplChromeOs::GetInstance(); |
67 } | 67 } |
68 | 68 |
69 // static | 69 // static |
70 TtsPlatformImplChromeOs* | 70 TtsPlatformImplChromeOs* |
71 TtsPlatformImplChromeOs::GetInstance() { | 71 TtsPlatformImplChromeOs::GetInstance() { |
72 return Singleton<TtsPlatformImplChromeOs>::get(); | 72 return Singleton<TtsPlatformImplChromeOs>::get(); |
73 } | 73 } |
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